Source : Free On-Line Dictionary of Computing

Hot Fix
     
         {Novell, Inc.}'s term for the feature of their
        network {file server} {operating system}, {Novell NetWare},
        which handles errors in disk write operations.  The OS
        re-reads every block it writes to disk while it holds the data
        to be written in memory.  In the case of an error, the data
        block is written to a spare area on the disk.
     
        The feature lost much of its importance with the widespread
        use of hard disk drives with built-in {error correction} and
        {bad block} re-mapping.
     
        (1997-05-27)